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56990780382 = 23172969188189
BaseRepresentation
bin110101000100111010…
…100100101111011110
312110002210012121110210
4311010322210233132
51413204114433012
642103050113250
74055166432444
oct650472445736
9173083177423
1056990780382
112219589a8a8
12b06611b826
1354b3198373
142a88d6ab94
15173848c23c
hexd44ea4bde

56990780382 has 32 divisors (see below), whose sum is σ = 120727648800. Its totient is φ = 17873343488.

The previous prime is 56990780351. The next prime is 56990780387. The reversal of 56990780382 is 28308709965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56990780387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208744 + ... + 396932.

It is an arithmetic number, because the mean of its divisors is an integer number (3772739025).

Almost surely, 256990780382 is an apocalyptic number.

56990780382 is an abundant number, since it is smaller than the sum of its proper divisors (63736868418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56990780382 is a wasteful number, since it uses less digits than its factorization.

56990780382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191180.

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 56990780382 in words is "fifty-six billion, nine hundred ninety million, seven hundred eighty thousand, three hundred eighty-two".

Divisors: 1 2 3 6 17 34 51 102 2969 5938 8907 17814 50473 100946 151419 188189 302838 376378 564567 1129134 3199213 6398426 9597639 19195278 558733141 1117466282 1676199423 3352398846 9498463397 18996926794 28495390191 56990780382